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Finding the Fourth Proportional to 134,312.85, 201,887.64 and 84,711.69

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Solution

The fourth proportional to 134,312.85, 201,887.64 and 84,711.69 is: 127,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,312.85 : 201,887.64 = 84,711.69 : x
  2. Step 2: Convert to fraction form
    134,312.85/201,887.64 = 84,711.69/x
  3. Step 3: Cross multiply
    134,312.85x = 201,887.64 × 84,711.69
  4. Step 4: Simplify right side
    134,312.85x = 17,102,243,174.51
  5. Step 5: Solve for x
    x = 17,102,243,174.51/134,312.85
  6. Step 6: Final answer
    x = 127,331.40

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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.