Home / 172,421.07-237,905.41-100,787.23

Finding the Fourth Proportional to 172,421.07, 237,905.41 and 100,787.23

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Solution

The fourth proportional to 172,421.07, 237,905.41 and 100,787.23 is: 139,065.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,421.07 : 237,905.41 = 100,787.23 : x
  2. Step 2: Convert to fraction form
    172,421.07/237,905.41 = 100,787.23/x
  3. Step 3: Cross multiply
    172,421.07x = 237,905.41 × 100,787.23
  4. Step 4: Simplify right side
    172,421.07x = 23,977,827,275.91
  5. Step 5: Solve for x
    x = 23,977,827,275.91/172,421.07
  6. Step 6: Final answer
    x = 139,065.53

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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.