Home / 205,133.80-307,643.10-64,935.40

Finding the Fourth Proportional to 205,133.80, 307,643.10 and 64,935.40

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Solution

The fourth proportional to 205,133.80, 307,643.10 and 64,935.40 is: 97,384.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,133.80 : 307,643.10 = 64,935.40 : x
  2. Step 2: Convert to fraction form
    205,133.80/307,643.10 = 64,935.40/x
  3. Step 3: Cross multiply
    205,133.80x = 307,643.10 × 64,935.40
  4. Step 4: Simplify right side
    205,133.80x = 19,976,927,755.74
  5. Step 5: Solve for x
    x = 19,976,927,755.74/205,133.80
  6. Step 6: Final answer
    x = 97,384.87

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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.