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Finding the Fourth Proportional to 116,567.61, 160,921.40 and 76,343.01

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Solution

The fourth proportional to 116,567.61, 160,921.40 and 76,343.01 is: 105,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,567.61 : 160,921.40 = 76,343.01 : x
  2. Step 2: Convert to fraction form
    116,567.61/160,921.40 = 76,343.01/x
  3. Step 3: Cross multiply
    116,567.61x = 160,921.40 × 76,343.01
  4. Step 4: Simplify right side
    116,567.61x = 12,285,223,667.70
  5. Step 5: Solve for x
    x = 12,285,223,667.70/116,567.61
  6. Step 6: Final answer
    x = 105,391.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.