Home / 105,265.22-145,267.02-57,518.56

Finding the Fourth Proportional to 105,265.22, 145,267.02 and 57,518.56

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Solution

The fourth proportional to 105,265.22, 145,267.02 and 57,518.56 is: 79,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,265.22 : 145,267.02 = 57,518.56 : x
  2. Step 2: Convert to fraction form
    105,265.22/145,267.02 = 57,518.56/x
  3. Step 3: Cross multiply
    105,265.22x = 145,267.02 × 57,518.56
  4. Step 4: Simplify right side
    105,265.22x = 8,355,549,805.89
  5. Step 5: Solve for x
    x = 8,355,549,805.89/105,265.22
  6. Step 6: Final answer
    x = 79,376.17

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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.