Home / 111,399.03-153,730.68-60,411.74

Finding the Fourth Proportional to 111,399.03, 153,730.68 and 60,411.74

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Solution

The fourth proportional to 111,399.03, 153,730.68 and 60,411.74 is: 83,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,399.03 : 153,730.68 = 60,411.74 : x
  2. Step 2: Convert to fraction form
    111,399.03/153,730.68 = 60,411.74/x
  3. Step 3: Cross multiply
    111,399.03x = 153,730.68 × 60,411.74
  4. Step 4: Simplify right side
    111,399.03x = 9,287,137,101.53
  5. Step 5: Solve for x
    x = 9,287,137,101.53/111,399.03
  6. Step 6: Final answer
    x = 83,368.20

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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.