Home / 253,430.12-349,730.89-137,141.03

Finding the Fourth Proportional to 253,430.12, 349,730.89 and 137,141.03

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Solution

The fourth proportional to 253,430.12, 349,730.89 and 137,141.03 is: 189,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,430.12 : 349,730.89 = 137,141.03 : x
  2. Step 2: Convert to fraction form
    253,430.12/349,730.89 = 137,141.03/x
  3. Step 3: Cross multiply
    253,430.12x = 349,730.89 × 137,141.03
  4. Step 4: Simplify right side
    253,430.12x = 47,962,455,008.89
  5. Step 5: Solve for x
    x = 47,962,455,008.89/253,430.12
  6. Step 6: Final answer
    x = 189,253.18

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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.