Home / 106,430.63-146,875.29-58,685.72

Finding the Fourth Proportional to 106,430.63, 146,875.29 and 58,685.72

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Solution

The fourth proportional to 106,430.63, 146,875.29 and 58,685.72 is: 80,986.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,430.63 : 146,875.29 = 58,685.72 : x
  2. Step 2: Convert to fraction form
    106,430.63/146,875.29 = 58,685.72/x
  3. Step 3: Cross multiply
    106,430.63x = 146,875.29 × 58,685.72
  4. Step 4: Simplify right side
    106,430.63x = 8,619,482,143.86
  5. Step 5: Solve for x
    x = 8,619,482,143.86/106,430.63
  6. Step 6: Final answer
    x = 80,986.86

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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.