Home / 158,307.02-218,455.54-86,673.18

Finding the Fourth Proportional to 158,307.02, 218,455.54 and 86,673.18

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Solution

The fourth proportional to 158,307.02, 218,455.54 and 86,673.18 is: 119,604.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,307.02 : 218,455.54 = 86,673.18 : x
  2. Step 2: Convert to fraction form
    158,307.02/218,455.54 = 86,673.18/x
  3. Step 3: Cross multiply
    158,307.02x = 218,455.54 × 86,673.18
  4. Step 4: Simplify right side
    158,307.02x = 18,934,235,907.05
  5. Step 5: Solve for x
    x = 18,934,235,907.05/158,307.02
  6. Step 6: Final answer
    x = 119,604.53

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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.