Home / 111,684.66-154,125.33-61,386.90

Finding the Fourth Proportional to 111,684.66, 154,125.33 and 61,386.90

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Solution

The fourth proportional to 111,684.66, 154,125.33 and 61,386.90 is: 84,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,684.66 : 154,125.33 = 61,386.90 : x
  2. Step 2: Convert to fraction form
    111,684.66/154,125.33 = 61,386.90/x
  3. Step 3: Cross multiply
    111,684.66x = 154,125.33 × 61,386.90
  4. Step 4: Simplify right side
    111,684.66x = 9,461,276,220.18
  5. Step 5: Solve for x
    x = 9,461,276,220.18/111,684.66
  6. Step 6: Final answer
    x = 84,714.20

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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.