Home / 153,935.86-212,435.09-85,950.53

Finding the Fourth Proportional to 153,935.86, 212,435.09 and 85,950.53

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Solution

The fourth proportional to 153,935.86, 212,435.09 and 85,950.53 is: 118,613.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,935.86 : 212,435.09 = 85,950.53 : x
  2. Step 2: Convert to fraction form
    153,935.86/212,435.09 = 85,950.53/x
  3. Step 3: Cross multiply
    153,935.86x = 212,435.09 × 85,950.53
  4. Step 4: Simplify right side
    153,935.86x = 18,258,908,146.35
  5. Step 5: Solve for x
    x = 18,258,908,146.35/153,935.86
  6. Step 6: Final answer
    x = 118,613.74

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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.