Home / 112,690.30-155,514.45-61,702.20

Finding the Fourth Proportional to 112,690.30, 155,514.45 and 61,702.20

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Solution

The fourth proportional to 112,690.30, 155,514.45 and 61,702.20 is: 85,150.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,690.30 : 155,514.45 = 61,702.20 : x
  2. Step 2: Convert to fraction form
    112,690.30/155,514.45 = 61,702.20/x
  3. Step 3: Cross multiply
    112,690.30x = 155,514.45 × 61,702.20
  4. Step 4: Simplify right side
    112,690.30x = 9,595,583,696.79
  5. Step 5: Solve for x
    x = 9,595,583,696.79/112,690.30
  6. Step 6: Final answer
    x = 85,150.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.