Home / 120,345.28-180,518.72-31,598.08

Finding the Fourth Proportional to 120,345.28, 180,518.72 and 31,598.08

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Solution

The fourth proportional to 120,345.28, 180,518.72 and 31,598.08 is: 47,397.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,345.28 : 180,518.72 = 31,598.08 : x
  2. Step 2: Convert to fraction form
    120,345.28/180,518.72 = 31,598.08/x
  3. Step 3: Cross multiply
    120,345.28x = 180,518.72 × 31,598.08
  4. Step 4: Simplify right side
    120,345.28x = 5,704,044,956.06
  5. Step 5: Solve for x
    x = 5,704,044,956.06/120,345.28
  6. Step 6: Final answer
    x = 47,397.33

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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.