Home / 103,615.19-142,983.09-58,295.08

Finding the Fourth Proportional to 103,615.19, 142,983.09 and 58,295.08

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Solution

The fourth proportional to 103,615.19, 142,983.09 and 58,295.08 is: 80,443.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615.19 : 142,983.09 = 58,295.08 : x
  2. Step 2: Convert to fraction form
    103,615.19/142,983.09 = 58,295.08/x
  3. Step 3: Cross multiply
    103,615.19x = 142,983.09 × 58,295.08
  4. Step 4: Simplify right side
    103,615.19x = 8,335,210,312.74
  5. Step 5: Solve for x
    x = 8,335,210,312.74/103,615.19
  6. Step 6: Final answer
    x = 80,443.91

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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.