Home / 142,193.32-196,225.14-77,662.24

Finding the Fourth Proportional to 142,193.32, 196,225.14 and 77,662.24

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Solution

The fourth proportional to 142,193.32, 196,225.14 and 77,662.24 is: 107,172.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,193.32 : 196,225.14 = 77,662.24 : x
  2. Step 2: Convert to fraction form
    142,193.32/196,225.14 = 77,662.24/x
  3. Step 3: Cross multiply
    142,193.32x = 196,225.14 × 77,662.24
  4. Step 4: Simplify right side
    142,193.32x = 15,239,283,916.71
  5. Step 5: Solve for x
    x = 15,239,283,916.71/142,193.32
  6. Step 6: Final answer
    x = 107,172.99

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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.