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Finding the Fourth Proportional to 103,844, 143,304.72 and 59,140.64

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Solution

The fourth proportional to 103,844, 143,304.72 and 59,140.64 is: 81,614.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,844 : 143,304.72 = 59,140.64 : x
  2. Step 2: Convert to fraction form
    103,844/143,304.72 = 59,140.64/x
  3. Step 3: Cross multiply
    103,844x = 143,304.72 × 59,140.64
  4. Step 4: Simplify right side
    103,844x = 8,475,132,855.82
  5. Step 5: Solve for x
    x = 8,475,132,855.82/103,844
  6. Step 6: Final answer
    x = 81,614.08

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1.5x scale

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.