Home / 130,218.63-179,708.70-72,854.53

Finding the Fourth Proportional to 130,218.63, 179,708.70 and 72,854.53

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Solution

The fourth proportional to 130,218.63, 179,708.70 and 72,854.53 is: 100,543.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,218.63 : 179,708.70 = 72,854.53 : x
  2. Step 2: Convert to fraction form
    130,218.63/179,708.70 = 72,854.53/x
  3. Step 3: Cross multiply
    130,218.63x = 179,708.70 × 72,854.53
  4. Step 4: Simplify right side
    130,218.63x = 13,092,592,426.14
  5. Step 5: Solve for x
    x = 13,092,592,426.14/130,218.63
  6. Step 6: Final answer
    x = 100,543.16

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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.