Home / 142,079.24-213,068.70-47,283.80

Finding the Fourth Proportional to 142,079.24, 213,068.70 and 47,283.80

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Solution

The fourth proportional to 142,079.24, 213,068.70 and 47,283.80 is: 70,909.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,079.24 : 213,068.70 = 47,283.80 : x
  2. Step 2: Convert to fraction form
    142,079.24/213,068.70 = 47,283.80/x
  3. Step 3: Cross multiply
    142,079.24x = 213,068.70 × 47,283.80
  4. Step 4: Simplify right side
    142,079.24x = 10,074,697,797.06
  5. Step 5: Solve for x
    x = 10,074,697,797.06/142,079.24
  6. Step 6: Final answer
    x = 70,909.01

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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.