Home / 185,345.12-255,803.59-117,368.30

Finding the Fourth Proportional to 185,345.12, 255,803.59 and 117,368.30

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Solution

The fourth proportional to 185,345.12, 255,803.59 and 117,368.30 is: 161,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,345.12 : 255,803.59 = 117,368.30 : x
  2. Step 2: Convert to fraction form
    185,345.12/255,803.59 = 117,368.30/x
  3. Step 3: Cross multiply
    185,345.12x = 255,803.59 × 117,368.30
  4. Step 4: Simplify right side
    185,345.12x = 30,023,232,492.20
  5. Step 5: Solve for x
    x = 30,023,232,492.20/185,345.12
  6. Step 6: Final answer
    x = 161,985.56

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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.