Home / 152,884.10-211,079.98-99,321.77

Finding the Fourth Proportional to 152,884.10, 211,079.98 and 99,321.77

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Solution

The fourth proportional to 152,884.10, 211,079.98 and 99,321.77 is: 137,128.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,884.10 : 211,079.98 = 99,321.77 : x
  2. Step 2: Convert to fraction form
    152,884.10/211,079.98 = 99,321.77/x
  3. Step 3: Cross multiply
    152,884.10x = 211,079.98 × 99,321.77
  4. Step 4: Simplify right side
    152,884.10x = 20,964,837,225.16
  5. Step 5: Solve for x
    x = 20,964,837,225.16/152,884.10
  6. Step 6: Final answer
    x = 137,128.96

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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.