Home / 236,281.12-326,075.76-128,860

Finding the Fourth Proportional to 236,281.12, 326,075.76 and 128,860

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Solution

The fourth proportional to 236,281.12, 326,075.76 and 128,860 is: 177,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,281.12 : 326,075.76 = 128,860 : x
  2. Step 2: Convert to fraction form
    236,281.12/326,075.76 = 128,860/x
  3. Step 3: Cross multiply
    236,281.12x = 326,075.76 × 128,860
  4. Step 4: Simplify right side
    236,281.12x = 42,018,122,433.60
  5. Step 5: Solve for x
    x = 42,018,122,433.60/236,281.12
  6. Step 6: Final answer
    x = 177,831.06

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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.