Home / 125,724.06-173,581.11-78,047.46

Finding the Fourth Proportional to 125,724.06, 173,581.11 and 78,047.46

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Solution

The fourth proportional to 125,724.06, 173,581.11 and 78,047.46 is: 107,756.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,724.06 : 173,581.11 = 78,047.46 : x
  2. Step 2: Convert to fraction form
    125,724.06/173,581.11 = 78,047.46/x
  3. Step 3: Cross multiply
    125,724.06x = 173,581.11 × 78,047.46
  4. Step 4: Simplify right side
    125,724.06x = 13,547,564,739.48
  5. Step 5: Solve for x
    x = 13,547,564,739.48/125,724.06
  6. Step 6: Final answer
    x = 107,756.34

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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.