Home / 137,710.04-189,996.54-77,271.80

Finding the Fourth Proportional to 137,710.04, 189,996.54 and 77,271.80

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Solution

The fourth proportional to 137,710.04, 189,996.54 and 77,271.80 is: 106,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,710.04 : 189,996.54 = 77,271.80 : x
  2. Step 2: Convert to fraction form
    137,710.04/189,996.54 = 77,271.80/x
  3. Step 3: Cross multiply
    137,710.04x = 189,996.54 × 77,271.80
  4. Step 4: Simplify right side
    137,710.04x = 14,681,374,639.57
  5. Step 5: Solve for x
    x = 14,681,374,639.57/137,710.04
  6. Step 6: Final answer
    x = 106,610.78

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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.