Home / 157,015.16-216,588.63-98,779.30

Finding the Fourth Proportional to 157,015.16, 216,588.63 and 98,779.30

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Solution

The fourth proportional to 157,015.16, 216,588.63 and 98,779.30 is: 136,257.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,015.16 : 216,588.63 = 98,779.30 : x
  2. Step 2: Convert to fraction form
    157,015.16/216,588.63 = 98,779.30/x
  3. Step 3: Cross multiply
    157,015.16x = 216,588.63 × 98,779.30
  4. Step 4: Simplify right side
    157,015.16x = 21,394,473,088.31
  5. Step 5: Solve for x
    x = 21,394,473,088.31/157,015.16
  6. Step 6: Final answer
    x = 136,257.37

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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.