Home / 137,108,129.04-189,212,700.24-75,228,451.20

Finding the Fourth Proportional to 137,108,129.04, 189,212,700.24 and 75,228,451.20

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Solution

The fourth proportional to 137,108,129.04, 189,212,700.24 and 75,228,451.20 is: 103,817,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,108,129.04 : 189,212,700.24 = 75,228,451.20 : x
  2. Step 2: Convert to fraction form
    137,108,129.04/189,212,700.24 = 75,228,451.20/x
  3. Step 3: Cross multiply
    137,108,129.04x = 189,212,700.24 × 75,228,451.20
  4. Step 4: Simplify right side
    137,108,129.04x = 14,234,178,386,425,070
  5. Step 5: Solve for x
    x = 14,234,178,386,425,070/137,108,129.04
  6. Step 6: Final answer
    x = 103,817,173.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.