Home / 79,146.90-118,461.15-61,521.30

Finding the Fourth Proportional to 79,146.90, 118,461.15 and 61,521.30

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Solution

The fourth proportional to 79,146.90, 118,461.15 and 61,521.30 is: 92,080.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,146.90 : 118,461.15 = 61,521.30 : x
  2. Step 2: Convert to fraction form
    79,146.90/118,461.15 = 61,521.30/x
  3. Step 3: Cross multiply
    79,146.90x = 118,461.15 × 61,521.30
  4. Step 4: Simplify right side
    79,146.90x = 7,287,883,947.50
  5. Step 5: Solve for x
    x = 7,287,883,947.50/79,146.90
  6. Step 6: Final answer
    x = 92,080.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.