Home / 105,113.10-145,050.75-57,366.06

Finding the Fourth Proportional to 105,113.10, 145,050.75 and 57,366.06

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Solution

The fourth proportional to 105,113.10, 145,050.75 and 57,366.06 is: 79,162.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,113.10 : 145,050.75 = 57,366.06 : x
  2. Step 2: Convert to fraction form
    105,113.10/145,050.75 = 57,366.06/x
  3. Step 3: Cross multiply
    105,113.10x = 145,050.75 × 57,366.06
  4. Step 4: Simplify right side
    105,113.10x = 8,320,990,027.55
  5. Step 5: Solve for x
    x = 8,320,990,027.55/105,113.10
  6. Step 6: Final answer
    x = 79,162.26

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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.