Home / 172,298.90-237,737.64-100,665.08

Finding the Fourth Proportional to 172,298.90, 237,737.64 and 100,665.08

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Solution

The fourth proportional to 172,298.90, 237,737.64 and 100,665.08 is: 138,897.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,298.90 : 237,737.64 = 100,665.08 : x
  2. Step 2: Convert to fraction form
    172,298.90/237,737.64 = 100,665.08/x
  3. Step 3: Cross multiply
    172,298.90x = 237,737.64 × 100,665.08
  4. Step 4: Simplify right side
    172,298.90x = 23,931,879,143.96
  5. Step 5: Solve for x
    x = 23,931,879,143.96/172,298.90
  6. Step 6: Final answer
    x = 138,897.46

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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.