Home / 124,130.06-171,273.35-81,172.52

Finding the Fourth Proportional to 124,130.06, 171,273.35 and 81,172.52

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Solution

The fourth proportional to 124,130.06, 171,273.35 and 81,172.52 is: 112,000.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,130.06 : 171,273.35 = 81,172.52 : x
  2. Step 2: Convert to fraction form
    124,130.06/171,273.35 = 81,172.52/x
  3. Step 3: Cross multiply
    124,130.06x = 171,273.35 × 81,172.52
  4. Step 4: Simplify right side
    124,130.06x = 13,902,689,428.34
  5. Step 5: Solve for x
    x = 13,902,689,428.34/124,130.06
  6. Step 6: Final answer
    x = 112,000.99

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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.