Home / 112,130.12-154,731.66-61,828.04

Finding the Fourth Proportional to 112,130.12, 154,731.66 and 61,828.04

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Solution

The fourth proportional to 112,130.12, 154,731.66 and 61,828.04 is: 85,318.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,130.12 : 154,731.66 = 61,828.04 : x
  2. Step 2: Convert to fraction form
    112,130.12/154,731.66 = 61,828.04/x
  3. Step 3: Cross multiply
    112,130.12x = 154,731.66 × 61,828.04
  4. Step 4: Simplify right side
    112,130.12x = 9,566,755,263.75
  5. Step 5: Solve for x
    x = 9,566,755,263.75/112,130.12
  6. Step 6: Final answer
    x = 85,318.34

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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.