Home / 105,102.15-145,041.21-59,779.14

Finding the Fourth Proportional to 105,102.15, 145,041.21 and 59,779.14

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Solution

The fourth proportional to 105,102.15, 145,041.21 and 59,779.14 is: 82,495.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,102.15 : 145,041.21 = 59,779.14 : x
  2. Step 2: Convert to fraction form
    105,102.15/145,041.21 = 59,779.14/x
  3. Step 3: Cross multiply
    105,102.15x = 145,041.21 × 59,779.14
  4. Step 4: Simplify right side
    105,102.15x = 8,670,438,798.36
  5. Step 5: Solve for x
    x = 8,670,438,798.36/105,102.15
  6. Step 6: Final answer
    x = 82,495.35

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1.5x scale

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.