Home / 213,024.91-319,457.63-91,430.10

Finding the Fourth Proportional to 213,024.91, 319,457.63 and 91,430.10

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Solution

The fourth proportional to 213,024.91, 319,457.63 and 91,430.10 is: 137,110.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,024.91 : 319,457.63 = 91,430.10 : x
  2. Step 2: Convert to fraction form
    213,024.91/319,457.63 = 91,430.10/x
  3. Step 3: Cross multiply
    213,024.91x = 319,457.63 × 91,430.10
  4. Step 4: Simplify right side
    213,024.91x = 29,208,041,002.22
  5. Step 5: Solve for x
    x = 29,208,041,002.22/213,024.91
  6. Step 6: Final answer
    x = 137,110.92

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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.