Home / 102,752.64-141,736.32-70,865.28

Finding the Fourth Proportional to 102,752.64, 141,736.32 and 70,865.28

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Solution

The fourth proportional to 102,752.64, 141,736.32 and 70,865.28 is: 97,751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,752.64 : 141,736.32 = 70,865.28 : x
  2. Step 2: Convert to fraction form
    102,752.64/141,736.32 = 70,865.28/x
  3. Step 3: Cross multiply
    102,752.64x = 141,736.32 × 70,865.28
  4. Step 4: Simplify right side
    102,752.64x = 10,044,184,002.97
  5. Step 5: Solve for x
    x = 10,044,184,002.97/102,752.64
  6. Step 6: Final answer
    x = 97,751.10

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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.