Home / 127,931.40-191,897.10-39,184.20

Finding the Fourth Proportional to 127,931.40, 191,897.10 and 39,184.20

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Solution

The fourth proportional to 127,931.40, 191,897.10 and 39,184.20 is: 58,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,931.40 : 191,897.10 = 39,184.20 : x
  2. Step 2: Convert to fraction form
    127,931.40/191,897.10 = 39,184.20/x
  3. Step 3: Cross multiply
    127,931.40x = 191,897.10 × 39,184.20
  4. Step 4: Simplify right side
    127,931.40x = 7,519,334,345.82
  5. Step 5: Solve for x
    x = 7,519,334,345.82/127,931.40
  6. Step 6: Final answer
    x = 58,776.30

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Similar ratio
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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.