Home / 153,307.02-211,443.65-99,609.48

Finding the Fourth Proportional to 153,307.02, 211,443.65 and 99,609.48

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Solution

The fourth proportional to 153,307.02, 211,443.65 and 99,609.48 is: 137,383.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,307.02 : 211,443.65 = 99,609.48 : x
  2. Step 2: Convert to fraction form
    153,307.02/211,443.65 = 99,609.48/x
  3. Step 3: Cross multiply
    153,307.02x = 211,443.65 × 99,609.48
  4. Step 4: Simplify right side
    153,307.02x = 21,061,792,025.80
  5. Step 5: Solve for x
    x = 21,061,792,025.80/153,307.02
  6. Step 6: Final answer
    x = 137,383.09

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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.