Home / 103,300.16-142,577.28-65,567.36

Finding the Fourth Proportional to 103,300.16, 142,577.28 and 65,567.36

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Solution

The fourth proportional to 103,300.16, 142,577.28 and 65,567.36 is: 90,497.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,300.16 : 142,577.28 = 65,567.36 : x
  2. Step 2: Convert to fraction form
    103,300.16/142,577.28 = 65,567.36/x
  3. Step 3: Cross multiply
    103,300.16x = 142,577.28 × 65,567.36
  4. Step 4: Simplify right side
    103,300.16x = 9,348,415,845.58
  5. Step 5: Solve for x
    x = 9,348,415,845.58/103,300.16
  6. Step 6: Final answer
    x = 90,497.59

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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.