Home / 141,985.48-195,931.08-78,323.20

Finding the Fourth Proportional to 141,985.48, 195,931.08 and 78,323.20

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Solution

The fourth proportional to 141,985.48, 195,931.08 and 78,323.20 is: 108,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,985.48 : 195,931.08 = 78,323.20 : x
  2. Step 2: Convert to fraction form
    141,985.48/195,931.08 = 78,323.20/x
  3. Step 3: Cross multiply
    141,985.48x = 195,931.08 × 78,323.20
  4. Step 4: Simplify right side
    141,985.48x = 15,345,949,165.06
  5. Step 5: Solve for x
    x = 15,345,949,165.06/141,985.48
  6. Step 6: Final answer
    x = 108,081.12

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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.