Home / 153,923.58-212,412.53-85,941.71

Finding the Fourth Proportional to 153,923.58, 212,412.53 and 85,941.71

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Solution

The fourth proportional to 153,923.58, 212,412.53 and 85,941.71 is: 118,598.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,923.58 : 212,412.53 = 85,941.71 : x
  2. Step 2: Convert to fraction form
    153,923.58/212,412.53 = 85,941.71/x
  3. Step 3: Cross multiply
    153,923.58x = 212,412.53 × 85,941.71
  4. Step 4: Simplify right side
    153,923.58x = 18,255,095,519.54
  5. Step 5: Solve for x
    x = 18,255,095,519.54/153,923.58
  6. Step 6: Final answer
    x = 118,598.43

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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.