Home / 140,639.04-210,931.68-42,143.04

Finding the Fourth Proportional to 140,639.04, 210,931.68 and 42,143.04

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Solution

The fourth proportional to 140,639.04, 210,931.68 and 42,143.04 is: 63,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,639.04 : 210,931.68 = 42,143.04 : x
  2. Step 2: Convert to fraction form
    140,639.04/210,931.68 = 42,143.04/x
  3. Step 3: Cross multiply
    140,639.04x = 210,931.68 × 42,143.04
  4. Step 4: Simplify right side
    140,639.04x = 8,889,302,227.51
  5. Step 5: Solve for x
    x = 8,889,302,227.51/140,639.04
  6. Step 6: Final answer
    x = 63,206.51

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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.