Home / 123,943.47-171,041.51-70,238.72

Finding the Fourth Proportional to 123,943.47, 171,041.51 and 70,238.72

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Solution

The fourth proportional to 123,943.47, 171,041.51 and 70,238.72 is: 96,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,943.47 : 171,041.51 = 70,238.72 : x
  2. Step 2: Convert to fraction form
    123,943.47/171,041.51 = 70,238.72/x
  3. Step 3: Cross multiply
    123,943.47x = 171,041.51 × 70,238.72
  4. Step 4: Simplify right side
    123,943.47x = 12,013,735,522.87
  5. Step 5: Solve for x
    x = 12,013,735,522.87/123,943.47
  6. Step 6: Final answer
    x = 96,929.15

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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.