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Finding the Fourth Proportional to 86,167.80, 118,972.80 and 62,402.40

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Solution

The fourth proportional to 86,167.80, 118,972.80 and 62,402.40 is: 86,159.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,167.80 : 118,972.80 = 62,402.40 : x
  2. Step 2: Convert to fraction form
    86,167.80/118,972.80 = 62,402.40/x
  3. Step 3: Cross multiply
    86,167.80x = 118,972.80 × 62,402.40
  4. Step 4: Simplify right side
    86,167.80x = 7,424,188,254.72
  5. Step 5: Solve for x
    x = 7,424,188,254.72/86,167.80
  6. Step 6: Final answer
    x = 86,159.66

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1.5x scale

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.