Home / 111,117.96-153,343.18-60,130.68

Finding the Fourth Proportional to 111,117.96, 153,343.18 and 60,130.68

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Solution

The fourth proportional to 111,117.96, 153,343.18 and 60,130.68 is: 82,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,117.96 : 153,343.18 = 60,130.68 : x
  2. Step 2: Convert to fraction form
    111,117.96/153,343.18 = 60,130.68/x
  3. Step 3: Cross multiply
    111,117.96x = 153,343.18 × 60,130.68
  4. Step 4: Simplify right side
    111,117.96x = 9,220,629,686.76
  5. Step 5: Solve for x
    x = 9,220,629,686.76/111,117.96
  6. Step 6: Final answer
    x = 82,980.56

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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.