Home / 123,500.34-170,429.40-66,911.58

Finding the Fourth Proportional to 123,500.34, 170,429.40 and 66,911.58

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Solution

The fourth proportional to 123,500.34, 170,429.40 and 66,911.58 is: 92,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,500.34 : 170,429.40 = 66,911.58 : x
  2. Step 2: Convert to fraction form
    123,500.34/170,429.40 = 66,911.58/x
  3. Step 3: Cross multiply
    123,500.34x = 170,429.40 × 66,911.58
  4. Step 4: Simplify right side
    123,500.34x = 11,403,700,432.45
  5. Step 5: Solve for x
    x = 11,403,700,432.45/123,500.34
  6. Step 6: Final answer
    x = 92,337.40

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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.