Home / 103,050.90-142,219.26-57,728.16

Finding the Fourth Proportional to 103,050.90, 142,219.26 and 57,728.16

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Solution

The fourth proportional to 103,050.90, 142,219.26 and 57,728.16 is: 79,669.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,050.90 : 142,219.26 = 57,728.16 : x
  2. Step 2: Convert to fraction form
    103,050.90/142,219.26 = 57,728.16/x
  3. Step 3: Cross multiply
    103,050.90x = 142,219.26 × 57,728.16
  4. Step 4: Simplify right side
    103,050.90x = 8,210,056,196.36
  5. Step 5: Solve for x
    x = 8,210,056,196.36/103,050.90
  6. Step 6: Final answer
    x = 79,669.91

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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.