Home / 142,133.87-196,136.30-77,590.24

Finding the Fourth Proportional to 142,133.87, 196,136.30 and 77,590.24

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Solution

The fourth proportional to 142,133.87, 196,136.30 and 77,590.24 is: 107,069.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,133.87 : 196,136.30 = 77,590.24 : x
  2. Step 2: Convert to fraction form
    142,133.87/196,136.30 = 77,590.24/x
  3. Step 3: Cross multiply
    142,133.87x = 196,136.30 × 77,590.24
  4. Step 4: Simplify right side
    142,133.87x = 15,218,262,293.35
  5. Step 5: Solve for x
    x = 15,218,262,293.35/142,133.87
  6. Step 6: Final answer
    x = 107,069.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.