Home / 105,445.85-157,970.12-52,075.35

Finding the Fourth Proportional to 105,445.85, 157,970.12 and 52,075.35

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Solution

The fourth proportional to 105,445.85, 157,970.12 and 52,075.35 is: 78,014.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,445.85 : 157,970.12 = 52,075.35 : x
  2. Step 2: Convert to fraction form
    105,445.85/157,970.12 = 52,075.35/x
  3. Step 3: Cross multiply
    105,445.85x = 157,970.12 × 52,075.35
  4. Step 4: Simplify right side
    105,445.85x = 8,226,349,028.17
  5. Step 5: Solve for x
    x = 8,226,349,028.17/105,445.85
  6. Step 6: Final answer
    x = 78,014.92

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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.