Home / 102,155,476-140,977,534.08-55,748,719.12

Finding the Fourth Proportional to 102,155,476, 140,977,534.08 and 55,748,719.12

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Solution

The fourth proportional to 102,155,476, 140,977,534.08 and 55,748,719.12 is: 76,934,857.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,155,476 : 140,977,534.08 = 55,748,719.12 : x
  2. Step 2: Convert to fraction form
    102,155,476/140,977,534.08 = 55,748,719.12/x
  3. Step 3: Cross multiply
    102,155,476x = 140,977,534.08 × 55,748,719.12
  4. Step 4: Simplify right side
    102,155,476x = 7,859,316,949,656,148
  5. Step 5: Solve for x
    x = 7,859,316,949,656,148/102,155,476
  6. Step 6: Final answer
    x = 76,934,857.12

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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.