Home / 152,153.04-209,900.45-98,455.41

Finding the Fourth Proportional to 152,153.04, 209,900.45 and 98,455.41

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Solution

The fourth proportional to 152,153.04, 209,900.45 and 98,455.41 is: 135,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,153.04 : 209,900.45 = 98,455.41 : x
  2. Step 2: Convert to fraction form
    152,153.04/209,900.45 = 98,455.41/x
  3. Step 3: Cross multiply
    152,153.04x = 209,900.45 × 98,455.41
  4. Step 4: Simplify right side
    152,153.04x = 20,665,834,371.66
  5. Step 5: Solve for x
    x = 20,665,834,371.66/152,153.04
  6. Step 6: Final answer
    x = 135,822.68

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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.