Home / 172,300.16-237,739.36-100,666.34

Finding the Fourth Proportional to 172,300.16, 237,739.36 and 100,666.34

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Solution

The fourth proportional to 172,300.16, 237,739.36 and 100,666.34 is: 138,899.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,300.16 : 237,739.36 = 100,666.34 : x
  2. Step 2: Convert to fraction form
    172,300.16/237,739.36 = 100,666.34/x
  3. Step 3: Cross multiply
    172,300.16x = 237,739.36 × 100,666.34
  4. Step 4: Simplify right side
    172,300.16x = 23,932,350,741.81
  5. Step 5: Solve for x
    x = 23,932,350,741.81/172,300.16
  6. Step 6: Final answer
    x = 138,899.18

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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.