Home / 111,430.08-153,772.60-60,442.68

Finding the Fourth Proportional to 111,430.08, 153,772.60 and 60,442.68

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Solution

The fourth proportional to 111,430.08, 153,772.60 and 60,442.68 is: 83,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,430.08 : 153,772.60 = 60,442.68 : x
  2. Step 2: Convert to fraction form
    111,430.08/153,772.60 = 60,442.68/x
  3. Step 3: Cross multiply
    111,430.08x = 153,772.60 × 60,442.68
  4. Step 4: Simplify right side
    111,430.08x = 9,294,428,287.89
  5. Step 5: Solve for x
    x = 9,294,428,287.89/111,430.08
  6. Step 6: Final answer
    x = 83,410.40

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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.