Home / 142,130.50-196,134.94-77,598.55

Finding the Fourth Proportional to 142,130.50, 196,134.94 and 77,598.55

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Solution

The fourth proportional to 142,130.50, 196,134.94 and 77,598.55 is: 107,083.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,130.50 : 196,134.94 = 77,598.55 : x
  2. Step 2: Convert to fraction form
    142,130.50/196,134.94 = 77,598.55/x
  3. Step 3: Cross multiply
    142,130.50x = 196,134.94 × 77,598.55
  4. Step 4: Simplify right side
    142,130.50x = 15,219,787,448.41
  5. Step 5: Solve for x
    x = 15,219,787,448.41/142,130.50
  6. Step 6: Final answer
    x = 107,083.19

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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.