Home / 161,638.80-242,458.28-43,307.12

Finding the Fourth Proportional to 161,638.80, 242,458.28 and 43,307.12

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Solution

The fourth proportional to 161,638.80, 242,458.28 and 43,307.12 is: 64,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,638.80 : 242,458.28 = 43,307.12 : x
  2. Step 2: Convert to fraction form
    161,638.80/242,458.28 = 43,307.12/x
  3. Step 3: Cross multiply
    161,638.80x = 242,458.28 × 43,307.12
  4. Step 4: Simplify right side
    161,638.80x = 10,500,169,826.95
  5. Step 5: Solve for x
    x = 10,500,169,826.95/161,638.80
  6. Step 6: Final answer
    x = 64,960.70

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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.