Home / 101,530.19-140,109.89-56,207.18

Finding the Fourth Proportional to 101,530.19, 140,109.89 and 56,207.18

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Solution

The fourth proportional to 101,530.19, 140,109.89 and 56,207.18 is: 77,564.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,530.19 : 140,109.89 = 56,207.18 : x
  2. Step 2: Convert to fraction form
    101,530.19/140,109.89 = 56,207.18/x
  3. Step 3: Cross multiply
    101,530.19x = 140,109.89 × 56,207.18
  4. Step 4: Simplify right side
    101,530.19x = 7,875,180,825.42
  5. Step 5: Solve for x
    x = 7,875,180,825.42/101,530.19
  6. Step 6: Final answer
    x = 77,564.92

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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.