Home / 103,409.28-142,699.32-58,089.17

Finding the Fourth Proportional to 103,409.28, 142,699.32 and 58,089.17

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Solution

The fourth proportional to 103,409.28, 142,699.32 and 58,089.17 is: 80,159.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,409.28 : 142,699.32 = 58,089.17 : x
  2. Step 2: Convert to fraction form
    103,409.28/142,699.32 = 58,089.17/x
  3. Step 3: Cross multiply
    103,409.28x = 142,699.32 × 58,089.17
  4. Step 4: Simplify right side
    103,409.28x = 8,289,285,058.36
  5. Step 5: Solve for x
    x = 8,289,285,058.36/103,409.28
  6. Step 6: Final answer
    x = 80,159.97

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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.