Home / 145,487.04-200,748.97-81,812.53

Finding the Fourth Proportional to 145,487.04, 200,748.97 and 81,812.53

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Solution

The fourth proportional to 145,487.04, 200,748.97 and 81,812.53 is: 112,888.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,487.04 : 200,748.97 = 81,812.53 : x
  2. Step 2: Convert to fraction form
    145,487.04/200,748.97 = 81,812.53/x
  3. Step 3: Cross multiply
    145,487.04x = 200,748.97 × 81,812.53
  4. Step 4: Simplify right side
    145,487.04x = 16,423,781,130.59
  5. Step 5: Solve for x
    x = 16,423,781,130.59/145,487.04
  6. Step 6: Final answer
    x = 112,888.28

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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.