Home / 153,632.21-212,013.33-85,653.50

Finding the Fourth Proportional to 153,632.21, 212,013.33 and 85,653.50

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Solution

The fourth proportional to 153,632.21, 212,013.33 and 85,653.50 is: 118,202.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,632.21 : 212,013.33 = 85,653.50 : x
  2. Step 2: Convert to fraction form
    153,632.21/212,013.33 = 85,653.50/x
  3. Step 3: Cross multiply
    153,632.21x = 212,013.33 × 85,653.50
  4. Step 4: Simplify right side
    153,632.21x = 18,159,683,761.16
  5. Step 5: Solve for x
    x = 18,159,683,761.16/153,632.21
  6. Step 6: Final answer
    x = 118,202.32

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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.