Home / 126,715.95-190,116.18-42,484.50

Finding the Fourth Proportional to 126,715.95, 190,116.18 and 42,484.50

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Solution

The fourth proportional to 126,715.95, 190,116.18 and 42,484.50 is: 63,740.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,715.95 : 190,116.18 = 42,484.50 : x
  2. Step 2: Convert to fraction form
    126,715.95/190,116.18 = 42,484.50/x
  3. Step 3: Cross multiply
    126,715.95x = 190,116.18 × 42,484.50
  4. Step 4: Simplify right side
    126,715.95x = 8,076,990,849.21
  5. Step 5: Solve for x
    x = 8,076,990,849.21/126,715.95
  6. Step 6: Final answer
    x = 63,740.92

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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.