Home / 139,938.18-209,088.29-135,038.34

Finding the Fourth Proportional to 139,938.18, 209,088.29 and 135,038.34

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Solution

The fourth proportional to 139,938.18, 209,088.29 and 135,038.34 is: 201,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,938.18 : 209,088.29 = 135,038.34 : x
  2. Step 2: Convert to fraction form
    139,938.18/209,088.29 = 135,038.34/x
  3. Step 3: Cross multiply
    139,938.18x = 209,088.29 × 135,038.34
  4. Step 4: Simplify right side
    139,938.18x = 28,234,934,919.85
  5. Step 5: Solve for x
    x = 28,234,934,919.85/139,938.18
  6. Step 6: Final answer
    x = 201,767.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.