Home / 137,520.18-206,280.42-37,681.20

Finding the Fourth Proportional to 137,520.18, 206,280.42 and 37,681.20

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Solution

The fourth proportional to 137,520.18, 206,280.42 and 37,681.20 is: 56,521.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,520.18 : 206,280.42 = 37,681.20 : x
  2. Step 2: Convert to fraction form
    137,520.18/206,280.42 = 37,681.20/x
  3. Step 3: Cross multiply
    137,520.18x = 206,280.42 × 37,681.20
  4. Step 4: Simplify right side
    137,520.18x = 7,772,893,762.10
  5. Step 5: Solve for x
    x = 7,772,893,762.10/137,520.18
  6. Step 6: Final answer
    x = 56,521.84

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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.