Home / 112,386.10-168,603.78-42,265.38

Finding the Fourth Proportional to 112,386.10, 168,603.78 and 42,265.38

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Solution

The fourth proportional to 112,386.10, 168,603.78 and 42,265.38 is: 63,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,386.10 : 168,603.78 = 42,265.38 : x
  2. Step 2: Convert to fraction form
    112,386.10/168,603.78 = 42,265.38/x
  3. Step 3: Cross multiply
    112,386.10x = 168,603.78 × 42,265.38
  4. Step 4: Simplify right side
    112,386.10x = 7,126,102,831.14
  5. Step 5: Solve for x
    x = 7,126,102,831.14/112,386.10
  6. Step 6: Final answer
    x = 63,407.33

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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.