Home / 153,583.64-211,947.55-85,598.72

Finding the Fourth Proportional to 153,583.64, 211,947.55 and 85,598.72

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Solution

The fourth proportional to 153,583.64, 211,947.55 and 85,598.72 is: 118,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,583.64 : 211,947.55 = 85,598.72 : x
  2. Step 2: Convert to fraction form
    153,583.64/211,947.55 = 85,598.72/x
  3. Step 3: Cross multiply
    153,583.64x = 211,947.55 × 85,598.72
  4. Step 4: Simplify right side
    153,583.64x = 18,142,438,987.14
  5. Step 5: Solve for x
    x = 18,142,438,987.14/153,583.64
  6. Step 6: Final answer
    x = 118,127.42

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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.