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Finding the Fourth Proportional to 152,713.02, 210,740 and 84,729.72

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Solution

The fourth proportional to 152,713.02, 210,740 and 84,729.72 is: 116,924.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,713.02 : 210,740 = 84,729.72 : x
  2. Step 2: Convert to fraction form
    152,713.02/210,740 = 84,729.72/x
  3. Step 3: Cross multiply
    152,713.02x = 210,740 × 84,729.72
  4. Step 4: Simplify right side
    152,713.02x = 17,855,941,192.80
  5. Step 5: Solve for x
    x = 17,855,941,192.80/152,713.02
  6. Step 6: Final answer
    x = 116,924.81

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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.