Home / 236,307.07-326,099.79-128,870.70

Finding the Fourth Proportional to 236,307.07, 326,099.79 and 128,870.70

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Solution

The fourth proportional to 236,307.07, 326,099.79 and 128,870.70 is: 177,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,307.07 : 326,099.79 = 128,870.70 : x
  2. Step 2: Convert to fraction form
    236,307.07/326,099.79 = 128,870.70/x
  3. Step 3: Cross multiply
    236,307.07x = 326,099.79 × 128,870.70
  4. Step 4: Simplify right side
    236,307.07x = 42,024,706,984.28
  5. Step 5: Solve for x
    x = 42,024,706,984.28/236,307.07
  6. Step 6: Final answer
    x = 177,839.40

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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.