Home / 112,690.16-155,511.96-61,703.12

Finding the Fourth Proportional to 112,690.16, 155,511.96 and 61,703.12

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Solution

The fourth proportional to 112,690.16, 155,511.96 and 61,703.12 is: 85,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,690.16 : 155,511.96 = 61,703.12 : x
  2. Step 2: Convert to fraction form
    112,690.16/155,511.96 = 61,703.12/x
  3. Step 3: Cross multiply
    112,690.16x = 155,511.96 × 61,703.12
  4. Step 4: Simplify right side
    112,690.16x = 9,595,573,129.32
  5. Step 5: Solve for x
    x = 9,595,573,129.32/112,690.16
  6. Step 6: Final answer
    x = 85,150.05

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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.