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Finding the Fourth Proportional to 98,182.70, 147,269.94 and 31,621.35

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Solution

The fourth proportional to 98,182.70, 147,269.94 and 31,621.35 is: 47,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,182.70 : 147,269.94 = 31,621.35 : x
  2. Step 2: Convert to fraction form
    98,182.70/147,269.94 = 31,621.35/x
  3. Step 3: Cross multiply
    98,182.70x = 147,269.94 × 31,621.35
  4. Step 4: Simplify right side
    98,182.70x = 4,656,874,317.22
  5. Step 5: Solve for x
    x = 4,656,874,317.22/98,182.70
  6. Step 6: Final answer
    x = 47,430.70

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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.