Home / 145,671.49-218,434.05-84,901.33

Finding the Fourth Proportional to 145,671.49, 218,434.05 and 84,901.33

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Solution

The fourth proportional to 145,671.49, 218,434.05 and 84,901.33 is: 127,309.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,671.49 : 218,434.05 = 84,901.33 : x
  2. Step 2: Convert to fraction form
    145,671.49/218,434.05 = 84,901.33/x
  3. Step 3: Cross multiply
    145,671.49x = 218,434.05 × 84,901.33
  4. Step 4: Simplify right side
    145,671.49x = 18,545,341,362.29
  5. Step 5: Solve for x
    x = 18,545,341,362.29/145,671.49
  6. Step 6: Final answer
    x = 127,309.34

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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.