Home / 130,346.73-179,862.68-72,981.56

Finding the Fourth Proportional to 130,346.73, 179,862.68 and 72,981.56

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Solution

The fourth proportional to 130,346.73, 179,862.68 and 72,981.56 is: 100,705.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,346.73 : 179,862.68 = 72,981.56 : x
  2. Step 2: Convert to fraction form
    130,346.73/179,862.68 = 72,981.56/x
  3. Step 3: Cross multiply
    130,346.73x = 179,862.68 × 72,981.56
  4. Step 4: Simplify right side
    130,346.73x = 13,126,657,707.96
  5. Step 5: Solve for x
    x = 13,126,657,707.96/130,346.73
  6. Step 6: Final answer
    x = 100,705.69

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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.