Home / 139,901.04-193,008.12-92,177.52

Finding the Fourth Proportional to 139,901.04, 193,008.12 and 92,177.52

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Solution

The fourth proportional to 139,901.04, 193,008.12 and 92,177.52 is: 127,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,901.04 : 193,008.12 = 92,177.52 : x
  2. Step 2: Convert to fraction form
    139,901.04/193,008.12 = 92,177.52/x
  3. Step 3: Cross multiply
    139,901.04x = 193,008.12 × 92,177.52
  4. Step 4: Simplify right side
    139,901.04x = 17,791,009,841.46
  5. Step 5: Solve for x
    x = 17,791,009,841.46/139,901.04
  6. Step 6: Final answer
    x = 127,168.53

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1.5x scale

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.