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Finding the Fourth Proportional to 152,637.16, 210,637.92 and 85,569.16

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Solution

The fourth proportional to 152,637.16, 210,637.92 and 85,569.16 is: 118,084.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,637.16 : 210,637.92 = 85,569.16 : x
  2. Step 2: Convert to fraction form
    152,637.16/210,637.92 = 85,569.16/x
  3. Step 3: Cross multiply
    152,637.16x = 210,637.92 × 85,569.16
  4. Step 4: Simplify right side
    152,637.16x = 18,024,109,878.55
  5. Step 5: Solve for x
    x = 18,024,109,878.55/152,637.16
  6. Step 6: Final answer
    x = 118,084.68

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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.