Home / 111,020.04-153,211.53-63,265.68

Finding the Fourth Proportional to 111,020.04, 153,211.53 and 63,265.68

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Solution

The fourth proportional to 111,020.04, 153,211.53 and 63,265.68 is: 87,308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,020.04 : 153,211.53 = 63,265.68 : x
  2. Step 2: Convert to fraction form
    111,020.04/153,211.53 = 63,265.68/x
  3. Step 3: Cross multiply
    111,020.04x = 153,211.53 × 63,265.68
  4. Step 4: Simplify right side
    111,020.04x = 9,693,031,629.29
  5. Step 5: Solve for x
    x = 9,693,031,629.29/111,020.04
  6. Step 6: Final answer
    x = 87,308.85

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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.