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Finding the Fourth Proportional to 102,321.78, 153,482.41 and 39,148.12

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Solution

The fourth proportional to 102,321.78, 153,482.41 and 39,148.12 is: 58,722.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,321.78 : 153,482.41 = 39,148.12 : x
  2. Step 2: Convert to fraction form
    102,321.78/153,482.41 = 39,148.12/x
  3. Step 3: Cross multiply
    102,321.78x = 153,482.41 × 39,148.12
  4. Step 4: Simplify right side
    102,321.78x = 6,008,547,804.57
  5. Step 5: Solve for x
    x = 6,008,547,804.57/102,321.78
  6. Step 6: Final answer
    x = 58,722.08

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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.