Home / 134,271.36-185,280.12-77,672.16

Finding the Fourth Proportional to 134,271.36, 185,280.12 and 77,672.16

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Solution

The fourth proportional to 134,271.36, 185,280.12 and 77,672.16 is: 107,179.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,271.36 : 185,280.12 = 77,672.16 : x
  2. Step 2: Convert to fraction form
    134,271.36/185,280.12 = 77,672.16/x
  3. Step 3: Cross multiply
    134,271.36x = 185,280.12 × 77,672.16
  4. Step 4: Simplify right side
    134,271.36x = 14,391,107,125.46
  5. Step 5: Solve for x
    x = 14,391,107,125.46/134,271.36
  6. Step 6: Final answer
    x = 107,179.28

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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.