Home / 172,001.10-257,491.35-127,823.70

Finding the Fourth Proportional to 172,001.10, 257,491.35 and 127,823.70

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Solution

The fourth proportional to 172,001.10, 257,491.35 and 127,823.70 is: 191,356.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,001.10 : 257,491.35 = 127,823.70 : x
  2. Step 2: Convert to fraction form
    172,001.10/257,491.35 = 127,823.70/x
  3. Step 3: Cross multiply
    172,001.10x = 257,491.35 × 127,823.70
  4. Step 4: Simplify right side
    172,001.10x = 32,913,497,075.00
  5. Step 5: Solve for x
    x = 32,913,497,075.00/172,001.10
  6. Step 6: Final answer
    x = 191,356.32

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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.