Home / 130,678.17-180,327.57-76,952.81

Finding the Fourth Proportional to 130,678.17, 180,327.57 and 76,952.81

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Solution

The fourth proportional to 130,678.17, 180,327.57 and 76,952.81 is: 106,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,678.17 : 180,327.57 = 76,952.81 : x
  2. Step 2: Convert to fraction form
    130,678.17/180,327.57 = 76,952.81/x
  3. Step 3: Cross multiply
    130,678.17x = 180,327.57 × 76,952.81
  4. Step 4: Simplify right side
    130,678.17x = 13,876,712,330.33
  5. Step 5: Solve for x
    x = 13,876,712,330.33/130,678.17
  6. Step 6: Final answer
    x = 106,189.98

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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.