Home / 145,389.20-218,083.08-38,772.92

Finding the Fourth Proportional to 145,389.20, 218,083.08 and 38,772.92

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Solution

The fourth proportional to 145,389.20, 218,083.08 and 38,772.92 is: 58,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,389.20 : 218,083.08 = 38,772.92 : x
  2. Step 2: Convert to fraction form
    145,389.20/218,083.08 = 38,772.92/x
  3. Step 3: Cross multiply
    145,389.20x = 218,083.08 × 38,772.92
  4. Step 4: Simplify right side
    145,389.20x = 8,455,717,814.19
  5. Step 5: Solve for x
    x = 8,455,717,814.19/145,389.20
  6. Step 6: Final answer
    x = 58,159.19

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1.5x scale

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.