Home / 102,521.40-153,782.10-47,117.40

Finding the Fourth Proportional to 102,521.40, 153,782.10 and 47,117.40

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Solution

The fourth proportional to 102,521.40, 153,782.10 and 47,117.40 is: 70,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,521.40 : 153,782.10 = 47,117.40 : x
  2. Step 2: Convert to fraction form
    102,521.40/153,782.10 = 47,117.40/x
  3. Step 3: Cross multiply
    102,521.40x = 153,782.10 × 47,117.40
  4. Step 4: Simplify right side
    102,521.40x = 7,245,812,718.54
  5. Step 5: Solve for x
    x = 7,245,812,718.54/102,521.40
  6. Step 6: Final answer
    x = 70,676.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.