Home / 91,771,155-126,402,945.12-70,537,329

Finding the Fourth Proportional to 91,771,155, 126,402,945.12 and 70,537,329

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Solution

The fourth proportional to 91,771,155, 126,402,945.12 and 70,537,329 is: 97,156,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,771,155 : 126,402,945.12 = 70,537,329 : x
  2. Step 2: Convert to fraction form
    91,771,155/126,402,945.12 = 70,537,329/x
  3. Step 3: Cross multiply
    91,771,155x = 126,402,945.12 × 70,537,329
  4. Step 4: Simplify right side
    91,771,155x = 8,916,126,126,498,385
  5. Step 5: Solve for x
    x = 8,916,126,126,498,385/91,771,155
  6. Step 6: Final answer
    x = 97,156,084.90

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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.