Home / 191,130.42-286,071.80-140,516.04

Finding the Fourth Proportional to 191,130.42, 286,071.80 and 140,516.04

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Solution

The fourth proportional to 191,130.42, 286,071.80 and 140,516.04 is: 210,315.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,130.42 : 286,071.80 = 140,516.04 : x
  2. Step 2: Convert to fraction form
    191,130.42/286,071.80 = 140,516.04/x
  3. Step 3: Cross multiply
    191,130.42x = 286,071.80 × 140,516.04
  4. Step 4: Simplify right side
    191,130.42x = 40,197,676,847.69
  5. Step 5: Solve for x
    x = 40,197,676,847.69/191,130.42
  6. Step 6: Final answer
    x = 210,315.43

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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.