Home / 112,703.76-155,550.24-64,985.04

Finding the Fourth Proportional to 112,703.76, 155,550.24 and 64,985.04

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Solution

The fourth proportional to 112,703.76, 155,550.24 and 64,985.04 is: 89,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,703.76 : 155,550.24 = 64,985.04 : x
  2. Step 2: Convert to fraction form
    112,703.76/155,550.24 = 64,985.04/x
  3. Step 3: Cross multiply
    112,703.76x = 155,550.24 × 64,985.04
  4. Step 4: Simplify right side
    112,703.76x = 10,108,438,568.41
  5. Step 5: Solve for x
    x = 10,108,438,568.41/112,703.76
  6. Step 6: Final answer
    x = 89,690.34

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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.