Home / 102,143.82-153,022.55-57,802.40

Finding the Fourth Proportional to 102,143.82, 153,022.55 and 57,802.40

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Solution

The fourth proportional to 102,143.82, 153,022.55 and 57,802.40 is: 86,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,143.82 : 153,022.55 = 57,802.40 : x
  2. Step 2: Convert to fraction form
    102,143.82/153,022.55 = 57,802.40/x
  3. Step 3: Cross multiply
    102,143.82x = 153,022.55 × 57,802.40
  4. Step 4: Simplify right side
    102,143.82x = 8,845,070,644.12
  5. Step 5: Solve for x
    x = 8,845,070,644.12/102,143.82
  6. Step 6: Final answer
    x = 86,594.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.