Home / 105,024.16-144,936.86-57,280.12

Finding the Fourth Proportional to 105,024.16, 144,936.86 and 57,280.12

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Solution

The fourth proportional to 105,024.16, 144,936.86 and 57,280.12 is: 79,048.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,024.16 : 144,936.86 = 57,280.12 : x
  2. Step 2: Convert to fraction form
    105,024.16/144,936.86 = 57,280.12/x
  3. Step 3: Cross multiply
    105,024.16x = 144,936.86 × 57,280.12
  4. Step 4: Simplify right side
    105,024.16x = 8,302,000,733.22
  5. Step 5: Solve for x
    x = 8,302,000,733.22/105,024.16
  6. Step 6: Final answer
    x = 79,048.48

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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.