Home / 106,931.65-147,602.55-61,627.72

Finding the Fourth Proportional to 106,931.65, 147,602.55 and 61,627.72

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Solution

The fourth proportional to 106,931.65, 147,602.55 and 61,627.72 is: 85,067.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,931.65 : 147,602.55 = 61,627.72 : x
  2. Step 2: Convert to fraction form
    106,931.65/147,602.55 = 61,627.72/x
  3. Step 3: Cross multiply
    106,931.65x = 147,602.55 × 61,627.72
  4. Step 4: Simplify right side
    106,931.65x = 9,096,408,314.55
  5. Step 5: Solve for x
    x = 9,096,408,314.55/106,931.65
  6. Step 6: Final answer
    x = 85,067.50

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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.