Home / 108,621,150.80-162,931,726.20-90,445,868.60

Finding the Fourth Proportional to 108,621,150.80, 162,931,726.20 and 90,445,868.60

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Solution

The fourth proportional to 108,621,150.80, 162,931,726.20 and 90,445,868.60 is: 135,668,802.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,621,150.80 : 162,931,726.20 = 90,445,868.60 : x
  2. Step 2: Convert to fraction form
    108,621,150.80/162,931,726.20 = 90,445,868.60/x
  3. Step 3: Cross multiply
    108,621,150.80x = 162,931,726.20 × 90,445,868.60
  4. Step 4: Simplify right side
    108,621,150.80x = 14,736,501,498,656,376
  5. Step 5: Solve for x
    x = 14,736,501,498,656,376/108,621,150.80
  6. Step 6: Final answer
    x = 135,668,802.90

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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.