Home / 153,136.17-211,328.60-89,460.45

Finding the Fourth Proportional to 153,136.17, 211,328.60 and 89,460.45

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Solution

The fourth proportional to 153,136.17, 211,328.60 and 89,460.45 is: 123,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,136.17 : 211,328.60 = 89,460.45 : x
  2. Step 2: Convert to fraction form
    153,136.17/211,328.60 = 89,460.45/x
  3. Step 3: Cross multiply
    153,136.17x = 211,328.60 × 89,460.45
  4. Step 4: Simplify right side
    153,136.17x = 18,905,551,206.57
  5. Step 5: Solve for x
    x = 18,905,551,206.57/153,136.17
  6. Step 6: Final answer
    x = 123,455.82

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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.