Home / 124,715.16-187,072.20-31,220.64

Finding the Fourth Proportional to 124,715.16, 187,072.20 and 31,220.64

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Solution

The fourth proportional to 124,715.16, 187,072.20 and 31,220.64 is: 46,830.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,715.16 : 187,072.20 = 31,220.64 : x
  2. Step 2: Convert to fraction form
    124,715.16/187,072.20 = 31,220.64/x
  3. Step 3: Cross multiply
    124,715.16x = 187,072.20 × 31,220.64
  4. Step 4: Simplify right side
    124,715.16x = 5,840,513,810.21
  5. Step 5: Solve for x
    x = 5,840,513,810.21/124,715.16
  6. Step 6: Final answer
    x = 46,830.82

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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.