Home / 147,631.80-221,447.70-54,125.40

Finding the Fourth Proportional to 147,631.80, 221,447.70 and 54,125.40

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Solution

The fourth proportional to 147,631.80, 221,447.70 and 54,125.40 is: 81,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,631.80 : 221,447.70 = 54,125.40 : x
  2. Step 2: Convert to fraction form
    147,631.80/221,447.70 = 54,125.40/x
  3. Step 3: Cross multiply
    147,631.80x = 221,447.70 × 54,125.40
  4. Step 4: Simplify right side
    147,631.80x = 11,985,945,341.58
  5. Step 5: Solve for x
    x = 11,985,945,341.58/147,631.80
  6. Step 6: Final answer
    x = 81,188.10

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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.