Home / 112,172.47-168,209.60-42,002.57

Finding the Fourth Proportional to 112,172.47, 168,209.60 and 42,002.57

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Solution

The fourth proportional to 112,172.47, 168,209.60 and 42,002.57 is: 62,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,172.47 : 168,209.60 = 42,002.57 : x
  2. Step 2: Convert to fraction form
    112,172.47/168,209.60 = 42,002.57/x
  3. Step 3: Cross multiply
    112,172.47x = 168,209.60 × 42,002.57
  4. Step 4: Simplify right side
    112,172.47x = 7,065,235,709.18
  5. Step 5: Solve for x
    x = 7,065,235,709.18/112,172.47
  6. Step 6: Final answer
    x = 62,985.47

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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.