Home / 141,840.10-212,760.15-71,710.30

Finding the Fourth Proportional to 141,840.10, 212,760.15 and 71,710.30

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Solution

The fourth proportional to 141,840.10, 212,760.15 and 71,710.30 is: 107,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,840.10 : 212,760.15 = 71,710.30 : x
  2. Step 2: Convert to fraction form
    141,840.10/212,760.15 = 71,710.30/x
  3. Step 3: Cross multiply
    141,840.10x = 212,760.15 × 71,710.30
  4. Step 4: Simplify right side
    141,840.10x = 15,257,094,184.55
  5. Step 5: Solve for x
    x = 15,257,094,184.55/141,840.10
  6. Step 6: Final answer
    x = 107,565.45

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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.