Home / 112,870.20-169,370.10-42,799.80

Finding the Fourth Proportional to 112,870.20, 169,370.10 and 42,799.80

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Solution

The fourth proportional to 112,870.20, 169,370.10 and 42,799.80 is: 64,224.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,870.20 : 169,370.10 = 42,799.80 : x
  2. Step 2: Convert to fraction form
    112,870.20/169,370.10 = 42,799.80/x
  3. Step 3: Cross multiply
    112,870.20x = 169,370.10 × 42,799.80
  4. Step 4: Simplify right side
    112,870.20x = 7,249,006,405.98
  5. Step 5: Solve for x
    x = 7,249,006,405.98/112,870.20
  6. Step 6: Final answer
    x = 64,224.27

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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.