Home / 112,713.75-155,543.86-61,030.60

Finding the Fourth Proportional to 112,713.75, 155,543.86 and 61,030.60

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Solution

The fourth proportional to 112,713.75, 155,543.86 and 61,030.60 is: 84,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,713.75 : 155,543.86 = 61,030.60 : x
  2. Step 2: Convert to fraction form
    112,713.75/155,543.86 = 61,030.60/x
  3. Step 3: Cross multiply
    112,713.75x = 155,543.86 × 61,030.60
  4. Step 4: Simplify right side
    112,713.75x = 9,492,935,102.12
  5. Step 5: Solve for x
    x = 9,492,935,102.12/112,713.75
  6. Step 6: Final answer
    x = 84,221.62

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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.