Home / 111,530.04-153,909.52-61,228.68

Finding the Fourth Proportional to 111,530.04, 153,909.52 and 61,228.68

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Solution

The fourth proportional to 111,530.04, 153,909.52 and 61,228.68 is: 84,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,530.04 : 153,909.52 = 61,228.68 : x
  2. Step 2: Convert to fraction form
    111,530.04/153,909.52 = 61,228.68/x
  3. Step 3: Cross multiply
    111,530.04x = 153,909.52 × 61,228.68
  4. Step 4: Simplify right side
    111,530.04x = 9,423,676,749.03
  5. Step 5: Solve for x
    x = 9,423,676,749.03/111,530.04
  6. Step 6: Final answer
    x = 84,494.52

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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.