Home / 103,520.46-142,840.40-58,192.16

Finding the Fourth Proportional to 103,520.46, 142,840.40 and 58,192.16

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Solution

The fourth proportional to 103,520.46, 142,840.40 and 58,192.16 is: 80,295.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,520.46 : 142,840.40 = 58,192.16 : x
  2. Step 2: Convert to fraction form
    103,520.46/142,840.40 = 58,192.16/x
  3. Step 3: Cross multiply
    103,520.46x = 142,840.40 × 58,192.16
  4. Step 4: Simplify right side
    103,520.46x = 8,312,191,411.26
  5. Step 5: Solve for x
    x = 8,312,191,411.26/103,520.46
  6. Step 6: Final answer
    x = 80,295.16

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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.