Home / 134,606.92-185,750.90-78,036.68

Finding the Fourth Proportional to 134,606.92, 185,750.90 and 78,036.68

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Solution

The fourth proportional to 134,606.92, 185,750.90 and 78,036.68 is: 107,686.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,606.92 : 185,750.90 = 78,036.68 : x
  2. Step 2: Convert to fraction form
    134,606.92/185,750.90 = 78,036.68/x
  3. Step 3: Cross multiply
    134,606.92x = 185,750.90 × 78,036.68
  4. Step 4: Simplify right side
    134,606.92x = 14,495,383,543.01
  5. Step 5: Solve for x
    x = 14,495,383,543.01/134,606.92
  6. Step 6: Final answer
    x = 107,686.76

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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.