Home / 126,723.61-190,127.63-42,492.10

Finding the Fourth Proportional to 126,723.61, 190,127.63 and 42,492.10

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Solution

The fourth proportional to 126,723.61, 190,127.63 and 42,492.10 is: 63,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,723.61 : 190,127.63 = 42,492.10 : x
  2. Step 2: Convert to fraction form
    126,723.61/190,127.63 = 42,492.10/x
  3. Step 3: Cross multiply
    126,723.61x = 190,127.63 × 42,492.10
  4. Step 4: Simplify right side
    126,723.61x = 8,078,921,422.32
  5. Step 5: Solve for x
    x = 8,078,921,422.32/126,723.61
  6. Step 6: Final answer
    x = 63,752.30

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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.