Home / 145,862.10-218,501.55-83,459.70

Finding the Fourth Proportional to 145,862.10, 218,501.55 and 83,459.70

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Solution

The fourth proportional to 145,862.10, 218,501.55 and 83,459.70 is: 125,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,862.10 : 218,501.55 = 83,459.70 : x
  2. Step 2: Convert to fraction form
    145,862.10/218,501.55 = 83,459.70/x
  3. Step 3: Cross multiply
    145,862.10x = 218,501.55 × 83,459.70
  4. Step 4: Simplify right side
    145,862.10x = 18,236,073,812.54
  5. Step 5: Solve for x
    x = 18,236,073,812.54/145,862.10
  6. Step 6: Final answer
    x = 125,022.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.