Home / 102,036.45-152,981.78-45,830.55

Finding the Fourth Proportional to 102,036.45, 152,981.78 and 45,830.55

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Solution

The fourth proportional to 102,036.45, 152,981.78 and 45,830.55 is: 68,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,036.45 : 152,981.78 = 45,830.55 : x
  2. Step 2: Convert to fraction form
    102,036.45/152,981.78 = 45,830.55/x
  3. Step 3: Cross multiply
    102,036.45x = 152,981.78 × 45,830.55
  4. Step 4: Simplify right side
    102,036.45x = 7,011,238,888.23
  5. Step 5: Solve for x
    x = 7,011,238,888.23/102,036.45
  6. Step 6: Final answer
    x = 68,713.08

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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.