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Finding the Fourth Proportional to 140,323.44, 210,492.45 and 70,179.06

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Solution

The fourth proportional to 140,323.44, 210,492.45 and 70,179.06 is: 105,272.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,323.44 : 210,492.45 = 70,179.06 : x
  2. Step 2: Convert to fraction form
    140,323.44/210,492.45 = 70,179.06/x
  3. Step 3: Cross multiply
    140,323.44x = 210,492.45 × 70,179.06
  4. Step 4: Simplify right side
    140,323.44x = 14,772,162,278.10
  5. Step 5: Solve for x
    x = 14,772,162,278.10/140,323.44
  6. Step 6: Final answer
    x = 105,272.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.