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Finding the Fourth Proportional to 152,328.71, 210,148.49 and 91,864.98

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Solution

The fourth proportional to 152,328.71, 210,148.49 and 91,864.98 is: 126,734.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,328.71 : 210,148.49 = 91,864.98 : x
  2. Step 2: Convert to fraction form
    152,328.71/210,148.49 = 91,864.98/x
  3. Step 3: Cross multiply
    152,328.71x = 210,148.49 × 91,864.98
  4. Step 4: Simplify right side
    152,328.71x = 19,305,287,060.54
  5. Step 5: Solve for x
    x = 19,305,287,060.54/152,328.71
  6. Step 6: Final answer
    x = 126,734.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.