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Finding the Fourth Proportional to 172,069.47, 237,484.31 and 143,343.63

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Solution

The fourth proportional to 172,069.47, 237,484.31 and 143,343.63 is: 197,837.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,069.47 : 237,484.31 = 143,343.63 : x
  2. Step 2: Convert to fraction form
    172,069.47/237,484.31 = 143,343.63/x
  3. Step 3: Cross multiply
    172,069.47x = 237,484.31 × 143,343.63
  4. Step 4: Simplify right side
    172,069.47x = 34,041,864,312.37
  5. Step 5: Solve for x
    x = 34,041,864,312.37/172,069.47
  6. Step 6: Final answer
    x = 197,837.91

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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.