Home / 158,147.02-218,245.62-86,533.30

Finding the Fourth Proportional to 158,147.02, 218,245.62 and 86,533.30

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Solution

The fourth proportional to 158,147.02, 218,245.62 and 86,533.30 is: 119,417.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,147.02 : 218,245.62 = 86,533.30 : x
  2. Step 2: Convert to fraction form
    158,147.02/218,245.62 = 86,533.30/x
  3. Step 3: Cross multiply
    158,147.02x = 218,245.62 × 86,533.30
  4. Step 4: Simplify right side
    158,147.02x = 18,885,513,709.15
  5. Step 5: Solve for x
    x = 18,885,513,709.15/158,147.02
  6. Step 6: Final answer
    x = 119,417.45

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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.