Home / 123,267.47-170,055.08-72,254.34

Finding the Fourth Proportional to 123,267.47, 170,055.08 and 72,254.34

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Solution

The fourth proportional to 123,267.47, 170,055.08 and 72,254.34 is: 99,679.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,267.47 : 170,055.08 = 72,254.34 : x
  2. Step 2: Convert to fraction form
    123,267.47/170,055.08 = 72,254.34/x
  3. Step 3: Cross multiply
    123,267.47x = 170,055.08 × 72,254.34
  4. Step 4: Simplify right side
    123,267.47x = 12,287,217,569.05
  5. Step 5: Solve for x
    x = 12,287,217,569.05/123,267.47
  6. Step 6: Final answer
    x = 99,679.32

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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.