Home / 103,127.04-142,324.02-57,804.30

Finding the Fourth Proportional to 103,127.04, 142,324.02 and 57,804.30

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Solution

The fourth proportional to 103,127.04, 142,324.02 and 57,804.30 is: 79,774.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,127.04 : 142,324.02 = 57,804.30 : x
  2. Step 2: Convert to fraction form
    103,127.04/142,324.02 = 57,804.30/x
  3. Step 3: Cross multiply
    103,127.04x = 142,324.02 × 57,804.30
  4. Step 4: Simplify right side
    103,127.04x = 8,226,940,349.29
  5. Step 5: Solve for x
    x = 8,226,940,349.29/103,127.04
  6. Step 6: Final answer
    x = 79,774.81

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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.