Home / 98,985.09-136,599.45-53,663.07

Finding the Fourth Proportional to 98,985.09, 136,599.45 and 53,663.07

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Solution

The fourth proportional to 98,985.09, 136,599.45 and 53,663.07 is: 74,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,985.09 : 136,599.45 = 53,663.07 : x
  2. Step 2: Convert to fraction form
    98,985.09/136,599.45 = 53,663.07/x
  3. Step 3: Cross multiply
    98,985.09x = 136,599.45 × 53,663.07
  4. Step 4: Simplify right side
    98,985.09x = 7,330,345,847.31
  5. Step 5: Solve for x
    x = 7,330,345,847.31/98,985.09
  6. Step 6: Final answer
    x = 74,055.05

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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.