Home / 209,312.10-314,041.05-91,068.30

Finding the Fourth Proportional to 209,312.10, 314,041.05 and 91,068.30

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Solution

The fourth proportional to 209,312.10, 314,041.05 and 91,068.30 is: 136,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,312.10 : 314,041.05 = 91,068.30 : x
  2. Step 2: Convert to fraction form
    209,312.10/314,041.05 = 91,068.30/x
  3. Step 3: Cross multiply
    209,312.10x = 314,041.05 × 91,068.30
  4. Step 4: Simplify right side
    209,312.10x = 28,599,184,553.72
  5. Step 5: Solve for x
    x = 28,599,184,553.72/209,312.10
  6. Step 6: Final answer
    x = 136,634.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.