Home / 191,492.08-286,810.40-138,780.52

Finding the Fourth Proportional to 191,492.08, 286,810.40 and 138,780.52

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Solution

The fourth proportional to 191,492.08, 286,810.40 and 138,780.52 is: 207,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,492.08 : 286,810.40 = 138,780.52 : x
  2. Step 2: Convert to fraction form
    191,492.08/286,810.40 = 138,780.52/x
  3. Step 3: Cross multiply
    191,492.08x = 286,810.40 × 138,780.52
  4. Step 4: Simplify right side
    191,492.08x = 39,803,696,453.41
  5. Step 5: Solve for x
    x = 39,803,696,453.41/191,492.08
  6. Step 6: Final answer
    x = 207,860.80

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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.