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Finding the Fourth Proportional to 152,345.88, 210,236.76 and 85,277.88

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Solution

The fourth proportional to 152,345.88, 210,236.76 and 85,277.88 is: 117,683.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,345.88 : 210,236.76 = 85,277.88 : x
  2. Step 2: Convert to fraction form
    152,345.88/210,236.76 = 85,277.88/x
  3. Step 3: Cross multiply
    152,345.88x = 210,236.76 × 85,277.88
  4. Step 4: Simplify right side
    152,345.88x = 17,928,545,190.87
  5. Step 5: Solve for x
    x = 17,928,545,190.87/152,345.88
  6. Step 6: Final answer
    x = 117,683.16

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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.