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Finding the Fourth Proportional to 127,424.51, 191,159.81 and 52,502.97

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Solution

The fourth proportional to 127,424.51, 191,159.81 and 52,502.97 is: 78,763.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,424.51 : 191,159.81 = 52,502.97 : x
  2. Step 2: Convert to fraction form
    127,424.51/191,159.81 = 52,502.97/x
  3. Step 3: Cross multiply
    127,424.51x = 191,159.81 × 52,502.97
  4. Step 4: Simplify right side
    127,424.51x = 10,036,457,985.02
  5. Step 5: Solve for x
    x = 10,036,457,985.02/127,424.51
  6. Step 6: Final answer
    x = 78,763.95

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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.