Home / 126,315.04-189,492-42,046.30

Finding the Fourth Proportional to 126,315.04, 189,492 and 42,046.30

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Solution

The fourth proportional to 126,315.04, 189,492 and 42,046.30 is: 63,075.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,315.04 : 189,492 = 42,046.30 : x
  2. Step 2: Convert to fraction form
    126,315.04/189,492 = 42,046.30/x
  3. Step 3: Cross multiply
    126,315.04x = 189,492 × 42,046.30
  4. Step 4: Simplify right side
    126,315.04x = 7,967,437,479.60
  5. Step 5: Solve for x
    x = 7,967,437,479.60/126,315.04
  6. Step 6: Final answer
    x = 63,075.92

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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.