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Finding the Fourth Proportional to 105,358.59, 158,026.95 and 30,490.29

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Solution

The fourth proportional to 105,358.59, 158,026.95 and 30,490.29 is: 45,732.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,358.59 : 158,026.95 = 30,490.29 : x
  2. Step 2: Convert to fraction form
    105,358.59/158,026.95 = 30,490.29/x
  3. Step 3: Cross multiply
    105,358.59x = 158,026.95 × 30,490.29
  4. Step 4: Simplify right side
    105,358.59x = 4,818,287,533.32
  5. Step 5: Solve for x
    x = 4,818,287,533.32/105,358.59
  6. Step 6: Final answer
    x = 45,732.27

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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.