Home / 118,307.04-163,264.56-64,593.12

Finding the Fourth Proportional to 118,307.04, 163,264.56 and 64,593.12

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Solution

The fourth proportional to 118,307.04, 163,264.56 and 64,593.12 is: 89,138.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,307.04 : 163,264.56 = 64,593.12 : x
  2. Step 2: Convert to fraction form
    118,307.04/163,264.56 = 64,593.12/x
  3. Step 3: Cross multiply
    118,307.04x = 163,264.56 × 64,593.12
  4. Step 4: Simplify right side
    118,307.04x = 10,545,767,315.83
  5. Step 5: Solve for x
    x = 10,545,767,315.83/118,307.04
  6. Step 6: Final answer
    x = 89,138.97

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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.