Home / 152,700.18-210,928.29-127,289.70

Finding the Fourth Proportional to 152,700.18, 210,928.29 and 127,289.70

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Solution

The fourth proportional to 152,700.18, 210,928.29 and 127,289.70 is: 175,828.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,700.18 : 210,928.29 = 127,289.70 : x
  2. Step 2: Convert to fraction form
    152,700.18/210,928.29 = 127,289.70/x
  3. Step 3: Cross multiply
    152,700.18x = 210,928.29 × 127,289.70
  4. Step 4: Simplify right side
    152,700.18x = 26,848,998,755.61
  5. Step 5: Solve for x
    x = 26,848,998,755.61/152,700.18
  6. Step 6: Final answer
    x = 175,828.21

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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.