Home / 236,282.90-326,064.48-128,855

Finding the Fourth Proportional to 236,282.90, 326,064.48 and 128,855

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Solution

The fourth proportional to 236,282.90, 326,064.48 and 128,855 is: 177,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,282.90 : 326,064.48 = 128,855 : x
  2. Step 2: Convert to fraction form
    236,282.90/326,064.48 = 128,855/x
  3. Step 3: Cross multiply
    236,282.90x = 326,064.48 × 128,855
  4. Step 4: Simplify right side
    236,282.90x = 42,015,038,570.40
  5. Step 5: Solve for x
    x = 42,015,038,570.40/236,282.90
  6. Step 6: Final answer
    x = 177,816.67

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1.5x scale

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.