Home / 102,117.20-153,235.74-42,948.32

Finding the Fourth Proportional to 102,117.20, 153,235.74 and 42,948.32

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Solution

The fourth proportional to 102,117.20, 153,235.74 and 42,948.32 is: 64,447.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,117.20 : 153,235.74 = 42,948.32 : x
  2. Step 2: Convert to fraction form
    102,117.20/153,235.74 = 42,948.32/x
  3. Step 3: Cross multiply
    102,117.20x = 153,235.74 × 42,948.32
  4. Step 4: Simplify right side
    102,117.20x = 6,581,217,596.96
  5. Step 5: Solve for x
    x = 6,581,217,596.96/102,117.20
  6. Step 6: Final answer
    x = 64,447.69

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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.