Home / 211,145.59-291,270.49-130,547.35

Finding the Fourth Proportional to 211,145.59, 291,270.49 and 130,547.35

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Solution

The fourth proportional to 211,145.59, 291,270.49 and 130,547.35 is: 180,087.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,145.59 : 291,270.49 = 130,547.35 : x
  2. Step 2: Convert to fraction form
    211,145.59/291,270.49 = 130,547.35/x
  3. Step 3: Cross multiply
    211,145.59x = 291,270.49 × 130,547.35
  4. Step 4: Simplify right side
    211,145.59x = 38,024,590,602.70
  5. Step 5: Solve for x
    x = 38,024,590,602.70/211,145.59
  6. Step 6: Final answer
    x = 180,087.07

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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.