Home / 130,981.95-196,491.42-42,255.36

Finding the Fourth Proportional to 130,981.95, 196,491.42 and 42,255.36

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Solution

The fourth proportional to 130,981.95, 196,491.42 and 42,255.36 is: 63,389.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,981.95 : 196,491.42 = 42,255.36 : x
  2. Step 2: Convert to fraction form
    130,981.95/196,491.42 = 42,255.36/x
  3. Step 3: Cross multiply
    130,981.95x = 196,491.42 × 42,255.36
  4. Step 4: Simplify right side
    130,981.95x = 8,302,815,689.01
  5. Step 5: Solve for x
    x = 8,302,815,689.01/130,981.95
  6. Step 6: Final answer
    x = 63,389.01

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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.