Home / 105,207.22-145,186.77-57,459.70

Finding the Fourth Proportional to 105,207.22, 145,186.77 and 57,459.70

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Solution

The fourth proportional to 105,207.22, 145,186.77 and 57,459.70 is: 79,294.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,207.22 : 145,186.77 = 57,459.70 : x
  2. Step 2: Convert to fraction form
    105,207.22/145,186.77 = 57,459.70/x
  3. Step 3: Cross multiply
    105,207.22x = 145,186.77 × 57,459.70
  4. Step 4: Simplify right side
    105,207.22x = 8,342,388,248.17
  5. Step 5: Solve for x
    x = 8,342,388,248.17/105,207.22
  6. Step 6: Final answer
    x = 79,294.83

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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.