Home / 133,276.16-183,921.28-76,686.40

Finding the Fourth Proportional to 133,276.16, 183,921.28 and 76,686.40

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Solution

The fourth proportional to 133,276.16, 183,921.28 and 76,686.40 is: 105,827.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,276.16 : 183,921.28 = 76,686.40 : x
  2. Step 2: Convert to fraction form
    133,276.16/183,921.28 = 76,686.40/x
  3. Step 3: Cross multiply
    133,276.16x = 183,921.28 × 76,686.40
  4. Step 4: Simplify right side
    133,276.16x = 14,104,260,846.59
  5. Step 5: Solve for x
    x = 14,104,260,846.59/133,276.16
  6. Step 6: Final answer
    x = 105,827.34

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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.