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Finding the Fourth Proportional to 102,030.70, 153,046.05 and 73,818.40

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Solution

The fourth proportional to 102,030.70, 153,046.05 and 73,818.40 is: 110,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,030.70 : 153,046.05 = 73,818.40 : x
  2. Step 2: Convert to fraction form
    102,030.70/153,046.05 = 73,818.40/x
  3. Step 3: Cross multiply
    102,030.70x = 153,046.05 × 73,818.40
  4. Step 4: Simplify right side
    102,030.70x = 11,297,614,537.32
  5. Step 5: Solve for x
    x = 11,297,614,537.32/102,030.70
  6. Step 6: Final answer
    x = 110,727.60

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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.