Home / 107,490.90-161,306.59-40,931.68

Finding the Fourth Proportional to 107,490.90, 161,306.59 and 40,931.68

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Solution

The fourth proportional to 107,490.90, 161,306.59 and 40,931.68 is: 61,424.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,490.90 : 161,306.59 = 40,931.68 : x
  2. Step 2: Convert to fraction form
    107,490.90/161,306.59 = 40,931.68/x
  3. Step 3: Cross multiply
    107,490.90x = 161,306.59 × 40,931.68
  4. Step 4: Simplify right side
    107,490.90x = 6,602,549,597.37
  5. Step 5: Solve for x
    x = 6,602,549,597.37/107,490.90
  6. Step 6: Final answer
    x = 61,424.27

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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.