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Finding the Fourth Proportional to 145,034.83, 217,885.79 and 103,017.12

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Solution

The fourth proportional to 145,034.83, 217,885.79 and 103,017.12 is: 154,762.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,034.83 : 217,885.79 = 103,017.12 : x
  2. Step 2: Convert to fraction form
    145,034.83/217,885.79 = 103,017.12/x
  3. Step 3: Cross multiply
    145,034.83x = 217,885.79 × 103,017.12
  4. Step 4: Simplify right side
    145,034.83x = 22,445,966,574.72
  5. Step 5: Solve for x
    x = 22,445,966,574.72/145,034.83
  6. Step 6: Final answer
    x = 154,762.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.