Home / 229,988.68-317,381.95-128,012.52

Finding the Fourth Proportional to 229,988.68, 317,381.95 and 128,012.52

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Solution

The fourth proportional to 229,988.68, 317,381.95 and 128,012.52 is: 176,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,988.68 : 317,381.95 = 128,012.52 : x
  2. Step 2: Convert to fraction form
    229,988.68/317,381.95 = 128,012.52/x
  3. Step 3: Cross multiply
    229,988.68x = 317,381.95 × 128,012.52
  4. Step 4: Simplify right side
    229,988.68x = 40,628,863,222.01
  5. Step 5: Solve for x
    x = 40,628,863,222.01/229,988.68
  6. Step 6: Final answer
    x = 176,655.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.