Home / 212,985.18-293,919.58-117,492.12

Finding the Fourth Proportional to 212,985.18, 293,919.58 and 117,492.12

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Solution

The fourth proportional to 212,985.18, 293,919.58 and 117,492.12 is: 162,139.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,985.18 : 293,919.58 = 117,492.12 : x
  2. Step 2: Convert to fraction form
    212,985.18/293,919.58 = 117,492.12/x
  3. Step 3: Cross multiply
    212,985.18x = 293,919.58 × 117,492.12
  4. Step 4: Simplify right side
    212,985.18x = 34,533,234,563.71
  5. Step 5: Solve for x
    x = 34,533,234,563.71/212,985.18
  6. Step 6: Final answer
    x = 162,139.14

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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.