Home / 105,128,318.64-145,075,551.48-58,719,232.56

Finding the Fourth Proportional to 105,128,318.64, 145,075,551.48 and 58,719,232.56

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Solution

The fourth proportional to 105,128,318.64, 145,075,551.48 and 58,719,232.56 is: 81,031,687.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,128,318.64 : 145,075,551.48 = 58,719,232.56 : x
  2. Step 2: Convert to fraction form
    105,128,318.64/145,075,551.48 = 58,719,232.56/x
  3. Step 3: Cross multiply
    105,128,318.64x = 145,075,551.48 × 58,719,232.56
  4. Step 4: Simplify right side
    105,128,318.64x = 8,518,725,046,124,372
  5. Step 5: Solve for x
    x = 8,518,725,046,124,372/105,128,318.64
  6. Step 6: Final answer
    x = 81,031,687.34

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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.