Home / 123,341.20-185,011.80-89,904.40

Finding the Fourth Proportional to 123,341.20, 185,011.80 and 89,904.40

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Solution

The fourth proportional to 123,341.20, 185,011.80 and 89,904.40 is: 134,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,341.20 : 185,011.80 = 89,904.40 : x
  2. Step 2: Convert to fraction form
    123,341.20/185,011.80 = 89,904.40/x
  3. Step 3: Cross multiply
    123,341.20x = 185,011.80 × 89,904.40
  4. Step 4: Simplify right side
    123,341.20x = 16,633,374,871.92
  5. Step 5: Solve for x
    x = 16,633,374,871.92/123,341.20
  6. Step 6: Final answer
    x = 134,856.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.