Home / 153,528.51-211,870.19-89,036.00

Finding the Fourth Proportional to 153,528.51, 211,870.19 and 89,036.00

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Solution

The fourth proportional to 153,528.51, 211,870.19 and 89,036.00 is: 122,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,528.51 : 211,870.19 = 89,036.00 : x
  2. Step 2: Convert to fraction form
    153,528.51/211,870.19 = 89,036.00/x
  3. Step 3: Cross multiply
    153,528.51x = 211,870.19 × 89,036.00
  4. Step 4: Simplify right side
    153,528.51x = 18,864,072,732.31
  5. Step 5: Solve for x
    x = 18,864,072,732.31/153,528.51
  6. Step 6: Final answer
    x = 122,870.16

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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.