Home / 211,038.19-291,221.16-115,526.41

Finding the Fourth Proportional to 211,038.19, 291,221.16 and 115,526.41

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Solution

The fourth proportional to 211,038.19, 291,221.16 and 115,526.41 is: 159,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,038.19 : 291,221.16 = 115,526.41 : x
  2. Step 2: Convert to fraction form
    211,038.19/291,221.16 = 115,526.41/x
  3. Step 3: Cross multiply
    211,038.19x = 291,221.16 × 115,526.41
  4. Step 4: Simplify right side
    211,038.19x = 33,643,735,130.84
  5. Step 5: Solve for x
    x = 33,643,735,130.84/211,038.19
  6. Step 6: Final answer
    x = 159,420.13

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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.