Home / 142,168.04-213,237.42-47,387.99

Finding the Fourth Proportional to 142,168.04, 213,237.42 and 47,387.99

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Solution

The fourth proportional to 142,168.04, 213,237.42 and 47,387.99 is: 71,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,168.04 : 213,237.42 = 47,387.99 : x
  2. Step 2: Convert to fraction form
    142,168.04/213,237.42 = 47,387.99/x
  3. Step 3: Cross multiply
    142,168.04x = 213,237.42 × 47,387.99
  4. Step 4: Simplify right side
    142,168.04x = 10,104,891,660.40
  5. Step 5: Solve for x
    x = 10,104,891,660.40/142,168.04
  6. Step 6: Final answer
    x = 71,077.10

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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.