Home / 158,077.02-218,143.53-86,455.47

Finding the Fourth Proportional to 158,077.02, 218,143.53 and 86,455.47

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Solution

The fourth proportional to 158,077.02, 218,143.53 and 86,455.47 is: 119,307.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,077.02 : 218,143.53 = 86,455.47 : x
  2. Step 2: Convert to fraction form
    158,077.02/218,143.53 = 86,455.47/x
  3. Step 3: Cross multiply
    158,077.02x = 218,143.53 × 86,455.47
  4. Step 4: Simplify right side
    158,077.02x = 18,859,701,413.61
  5. Step 5: Solve for x
    x = 18,859,701,413.61/158,077.02
  6. Step 6: Final answer
    x = 119,307.04

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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.