Home / 105,187.02-145,157.13-57,440.22

Finding the Fourth Proportional to 105,187.02, 145,157.13 and 57,440.22

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Solution

The fourth proportional to 105,187.02, 145,157.13 and 57,440.22 is: 79,266.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,187.02 : 145,157.13 = 57,440.22 : x
  2. Step 2: Convert to fraction form
    105,187.02/145,157.13 = 57,440.22/x
  3. Step 3: Cross multiply
    105,187.02x = 145,157.13 × 57,440.22
  4. Step 4: Simplify right side
    105,187.02x = 8,337,857,481.77
  5. Step 5: Solve for x
    x = 8,337,857,481.77/105,187.02
  6. Step 6: Final answer
    x = 79,266.98

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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.