Home / 112,578.60-155,655.30-98,581.80

Finding the Fourth Proportional to 112,578.60, 155,655.30 and 98,581.80

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Solution

The fourth proportional to 112,578.60, 155,655.30 and 98,581.80 is: 136,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,578.60 : 155,655.30 = 98,581.80 : x
  2. Step 2: Convert to fraction form
    112,578.60/155,655.30 = 98,581.80/x
  3. Step 3: Cross multiply
    112,578.60x = 155,655.30 × 98,581.80
  4. Step 4: Simplify right side
    112,578.60x = 15,344,779,653.54
  5. Step 5: Solve for x
    x = 15,344,779,653.54/112,578.60
  6. Step 6: Final answer
    x = 136,302.81

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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.