Home / 153,928.79-212,419.70-85,946.93

Finding the Fourth Proportional to 153,928.79, 212,419.70 and 85,946.93

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Solution

The fourth proportional to 153,928.79, 212,419.70 and 85,946.93 is: 118,605.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,928.79 : 212,419.70 = 85,946.93 : x
  2. Step 2: Convert to fraction form
    153,928.79/212,419.70 = 85,946.93/x
  3. Step 3: Cross multiply
    153,928.79x = 212,419.70 × 85,946.93
  4. Step 4: Simplify right side
    153,928.79x = 18,256,819,594.69
  5. Step 5: Solve for x
    x = 18,256,819,594.69/153,928.79
  6. Step 6: Final answer
    x = 118,605.62

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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.