Home / 113,074.80-156,055.68-64,681.20

Finding the Fourth Proportional to 113,074.80, 156,055.68 and 64,681.20

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Solution

The fourth proportional to 113,074.80, 156,055.68 and 64,681.20 is: 89,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,074.80 : 156,055.68 = 64,681.20 : x
  2. Step 2: Convert to fraction form
    113,074.80/156,055.68 = 64,681.20/x
  3. Step 3: Cross multiply
    113,074.80x = 156,055.68 × 64,681.20
  4. Step 4: Simplify right side
    113,074.80x = 10,093,868,649.22
  5. Step 5: Solve for x
    x = 10,093,868,649.22/113,074.80
  6. Step 6: Final answer
    x = 89,267.18

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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.