Home / 140,145.66-210,254.08-40,303.72

Finding the Fourth Proportional to 140,145.66, 210,254.08 and 40,303.72

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Solution

The fourth proportional to 140,145.66, 210,254.08 and 40,303.72 is: 60,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,145.66 : 210,254.08 = 40,303.72 : x
  2. Step 2: Convert to fraction form
    140,145.66/210,254.08 = 40,303.72/x
  3. Step 3: Cross multiply
    140,145.66x = 210,254.08 × 40,303.72
  4. Step 4: Simplify right side
    140,145.66x = 8,474,021,569.18
  5. Step 5: Solve for x
    x = 8,474,021,569.18/140,145.66
  6. Step 6: Final answer
    x = 60,465.82

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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.