Home / 157,020.36-216,595.83-98,784.51

Finding the Fourth Proportional to 157,020.36, 216,595.83 and 98,784.51

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Solution

The fourth proportional to 157,020.36, 216,595.83 and 98,784.51 is: 136,264.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,020.36 : 216,595.83 = 98,784.51 : x
  2. Step 2: Convert to fraction form
    157,020.36/216,595.83 = 98,784.51/x
  3. Step 3: Cross multiply
    157,020.36x = 216,595.83 × 98,784.51
  4. Step 4: Simplify right side
    157,020.36x = 21,396,312,934.59
  5. Step 5: Solve for x
    x = 21,396,312,934.59/157,020.36
  6. Step 6: Final answer
    x = 136,264.58

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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.